Method of filling engine gas-tanks



. J. WEIERSHAUSEH.

METHOD OF FILLING ENGINE GAS TANKS.

APPLICATION FILED APR- 5, I920.

Patented Oct. 18, 1921 INVENTOR.

" Qwgw m' ATTORNEY UNITED STATES PATENT orr cs.

HENRY J". WEIERSHAUSER, 0F STOCKTON, CALIFORNIA.

METHOD FILLING ENGINE GAS-TANKS.

To all whom it may concern:

Be it known that I, HENRY J. WEIERS- HAUSER, a citizen of the United States, residing at Stockton in the county of San Joaquin, State of California, have invented certain new and useful Improvements in Methods of Filling Engine Gas-Tanks; and I do declare the following tobe a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This inventionrelates to improvements in methods of filling engine gas tanks, es pecially the gas tanks on tractors and the like.

When these machines are in the field during the preparation of large areas of ground for planting, etc., they are very often away from headquarters for extensive period's. It is therefore customary to carry auxiliary gas drums or reservoirs, from which the engine gas tank may be refilled when necessary. .This is done at present by means of a hand suction pump, which is a slow and arduous procedure.

The principal object of my invention therefore is to devise a method of refilling the engine tank by means of the vacuum obtained with the operation of the engine, with the aid of a simple appliance on the gas tank and suitable connections to the engine.

A further object of the invention is to produce a simple and inexpensive device, and yet one which will be exceedingly effective for the purposes for which it is designed. I

These objects I accomplish by means of .such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings similar characters of reference indicate corresponding parts in theseveral views. i Figure 1 is a side outline of a form of tractor, showing my improved tank filling device installed thereon.

' Fig. 2 is an enlarged sectional view of a control valve. 9

/ Referring now more particularly to the characters of reference on the drawings, the

numeral 1 denotes in general a tractor having'ja gas engine 2 and "a gas tank 3. The

engine of course has a carbureter 4 eon Specification of Letters Patent.

' gas tank.

Patented Oct. 18, 1921.v

Application and A rn 5, 1920. Serial No. 371,472.

nected with the combustion chambers of the engine by the usual manifold 5. i In carrying out my improved method, I employ a small auxiliary gas tank 6 "connectedwith the carbureter intake bya pipe 7 and with the main tank 3 by a pipe 8, the latter having a shut off cock 9 interposed therein.

A float valve member 10 is fixed in the top of the tank 3, comprising a body 11 hav-' ing communication with the tank 3, in which isslidably mounted a needle valve 12 having a float 13, on its lower end.

This valve when raisedis adapted to seat in the lower end of a connection 1 1, to which is secured one end of a pipe 15, the other end of said pipe being connected to the maniinto a gas drum 19 positioned on the ground or elsewhere.

The operation of the device is as follows The valve 9 between the main and auxiliary gas tanks is'first closed, and the engine started, drawing its fuel supply from the auxiliary tank.

The running of the engine creates a vacuum in the manifold 5, which of course draws air through the pipe 15 when the cook 16 is opened.

The air in the tank 3, the latter being air tight, is of course soon exhausted, and liquid from the tank 19 is forced through the hose 18 which is immersed therein, by reason of the atmospheric pressure thereon. The opening of the body 11 into the tank 3 being very much greater than the pipe 16, the liquid will flow downwardly into said tank, rapidly filling the same.

When the tank is full, the float 13 will rise and shut ofi' the pipe connection 14, preventing any more liquid frombeing drawn into the tank. The cook 16 may then be closed, the cock 9 opened, and the hose 18 removed from the drum and uncoupled or hung at any convenient point, the hose or its opening forming the necessary air vent for the v A valve 7 is placed-in the pipe 7 between the tank and the carbureter, which is closed when the tractor is drawing its sup-.

ply from the main tank 19 through the pipe 19 so that the tank 6 will fill from the main tank, and will then be available when the main tank is empty.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfils the object of the invention as set forth herein. 7 While this specification sets forth in detail the present and preferred construction of the device stillin practice such deviations from such detail may be resorted to as do not form a departurefrom the spirit of the invention, as defined by theappended claims. Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent is 1. A hollow body member adapted to be secured on the upper side of an engine gastank over an orifice therein a pipe leading from the top of the body to .te intake manifold of the engine, a vertically movable float-valve mounted in the body and adapted to close said pipe when the tank is full, and a relatively large pipe leading from one side of the body below the first named pipeand adapted to be immersed in a source of fuel supply. v.

2. A hollow body member adapted to be secured on the upper side of anengine gas-tank over an orifice therein a pipe leading from one side-of the body and adaptedto be immersed in a source of liquid fuel supply, a relatively small pipe connectedtothe top of the body member and to the intake manifold of the engine, a stem slidably mounted in the body, for limited vertical movement and adapted to form a closure for said last the main tank is. full, a pipe leading from one side of the body and adaptedto be im- 1' mersed in a source of supply, and a float for operating said valve depending below said body member and into the tank.

4. In combination with a gas engine, a

' permanent fuel supply tank therefor having communlcation with the carbureter of the engine, and an exteriorsource of supply; means for'filling the permanent tank from the exterior source by the suction of the engine, and an auxiliary fuel tank connected to the permanent tank to supply the engine with fuel to operate the same while the permanent tank is being filled but shut ofi' from communication therewith atsuch time.

5. In combination with .a gas engine, a permanent fuel supply tank therefor having communication with the carbureter of the engine, and an exterior source of supply; means for filling the permanent tankufrom the exterior source by the suction of the engine, an auxiliary fuel tank, .a pipe connecting both tanks, another pipe connecting the.

auxiliary tank with the carbureter, and shutoff cocks interposed in both pipes.

In testimon whereof I afix m signature.

HEN Y J. WEIERS \USER. 

